Subwoofer Specifications

Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.

SD

Subwoofer Size

Refers to the diameter of the subwoofer, measured in inches.

12"

Peak Power Handling

Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.

500 watts

RMS Power Handling

The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.

175 watts

Voice Coil(s)

Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.

Single

Impedance (Per Voice Coil)

The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.

4 ohms

Frequency Response

The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).

28 - 125 Hz

Sensitivity

An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".

88 dB

Subwoofer Design

This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle

Main Cone Color

This is the color of the speaker's or subwoofer's cone.

Silver

Woofer Composition

Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.

Polypropylene

Woofer Surround

A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.

Foam

Subwoofer Grille

Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.

No

Re-Cone Kit Available

Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.

No

Recommended Enclosure Specifications

Recommended Enclosure Type

This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

BandpassPorted / VentedSealed

Minimum Sealed Box Volume

This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

.75 cubic feet

Maximum Sealed Box Volume

This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

1.25 cubic feet

Minimum Ported Box Volume

This value indicates the minimum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

1.0 cubic feet

Maximum Ported Box Volume

This value indicates the maximum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

1.50 cubic feet

Top-Mount Depth

The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.

4-1/2"

Cutout Diameter

The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.

8-5/8"

Shallow Mount Installation

This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

No

Specials with this Item

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If your looking to add a subwoofer to your automobile and your not wanting crazy shaking apart your car and you just want better sound with a little thump. then this is the sub for you...it can still saddle your vehicle a little bit! It'll add that bass...but your not going to be winning any competitions with it...it hits pretty low considering how much it is...I would recommend this subwoofer if you looking just to upgrade your audio system...if your looking to blow out your windows...then move on but this subwoofer defentaly adds bass with a good sound...it hasn't distorted with me and I always push this sub.

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Running 2 of these in a ported box (1.68 ft3) & 50hz and these things slam. Running a 600W rms amp about halfway up and they hit hard with no distortion or burning smell. Best bang 4 the buck ever. Can be heard several houses away shaking windows. You will like it for a more entry level system

5 of 8 found this helpful

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This is a good sub for a small system. At first the suspension is very stiff but over time it will loosen up and this woofer be at it full potential. I have had mine for a year now and it sounds great, i only have it running on about 110 watts and it is awesome, especially for only 30 bucks. Just the other day i played some test tones from 5hz-70hz. The woofer took it like a champ, I heard no distortion and at the end of the 30 min test the coil wasnt even warm!

5 of 8 found this helpful

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This sub is alright. I'd rather my old school MTX Thunder 8000 12"s, but it's a good deal. I've got mine in a "Frankenbox" 4 order bandpass bridged on a "dual" 400w amp and it sounds pretty decent for what it is (a value sub), but I'm sure my box is doing a lot if not most of the work.

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I totally recommend these speakers to all bass heads and anyone out there these babies will handle 450 rms total and 1500 peak no lie, this is one of the best deals on sonic the dual speaker is also made from the finest materials too so it will beat hard and for a long time!!! no worries about it falling apart!! GREAT BUY!!! Had mine going for 2 years now, everyday lol and still going hard at least 2 hours a day

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Worth it, if you can find them. These that I am using are the 150 watt version (they are discontinued, but can be found on Ebay, and on closeout at O'reilly Auto Parts). I have 2 - 12" in the 150 watt (300 max) hooked up to a Dual XPE2700 amp, and it is plenty of power to drive them. I don't listen to hip-hop usually...mostly rock, techno, and country. These subs kick just fine, using the low-pass band and frequency switch on the amp. Also with the gain about 20% on the dial. These are in a full size Dodge Ram QuadCab, and can EASILY be heard & felt. I have another XPE4700 amp driving the door and dash speakers....but these subs make up for it. Just don't use any amps higher than 300 or 400 watts on these.

1 of 2 found this helpful

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This sub sucked, I had it for a while but hadn't hooked it up till about a month ago. I finally got it hooked up, was working fine, I was loving it then all of a sudden I had no bass on my way home work. I got home and checked it out but it was a loose wire, no big deal. I got that fixed then it stopped again. One of the wires completely blew up (yes they were the right gauge.) My friend fixed it about a week later, worked for another day then I checked again. Everything looked right till I took the sub out of the box. The wire that comes on the sub had been shredded! I was pissed but my friend said he would fix it, but he doesn't/didn't have the time to fix it. I finally decided to test the durability. I wanted to see if it would be able to handle the hit from a pickaxe straight to it. My thoughts were going to be no it definitely wont be able to handle it. It took the first shot like a champion, the second was a little more damaging, as in everything was smashed and that people is why you should buy a dual sd12 subwoofer.

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Not a bad sub if your on a strict budget or only want a lil extra bass. i had one of these in a prefab box pushing it with a 125rms off brand amp and it hit pretty hard in my 93 blazer. Not too bad. Shook the mirrors. I was definitely impressed. ordered some new subs and amp off ebay and the amp came in first. It was a 1000 watt crunch 2 channel. I hooked it up to this sub just to see how it would fair and was greatly impressed!! 2 of these with a decent 1000 watt amp and a good box will definitely give you good bass at a cheap price. I plan on building a system for my old ladys car with two of these in a ported box with a 1100 watt boss monoblock amp.

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This sub barely fits into entry level sub. If you wanted to get this sub for your first sub, don't. Go over to kicker for your first system. Then move up once you learn what is good like Alpine, Cerwin Vega, RF, JL, Digital Designs, Asendent Audio. Only person I would reccomend this sub to is someone I hate.

2 of 4 found this helpful

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My last set of subs was two 10" alpines. I then got a new car and purchased just one of these Duals with a 400 watt dual amp to go with it. I didnt want to spend much so i didnt. This sub is more than enough for me with little to no distortion whatsoever. No matter what all the 'bass heads' say about how dual sucks. this sub BUMPS. end of story.

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I put 2 of these in a custom ported box that I made and was really blown away when I hooked them up to my Kenwood 740w amp. I managed to break off my rear view mirror with them in my 4 door blazer. my friends tell me that its louder than my other friends kicker comp 1000w set up he had.

Only down fall is the foam surround, it gives plenty of movement, but who knows how long it will bne untill it starts to deterriorate. and it doesnt put out the higher frequencies that well, but those are normally annoying anyways, and its got killer lows and kicks real hard.

I definitely recommend these for anyone wanting to show people up on a budget.

2 of 4 found this helpful

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I got this sub in my 94 Accord in a bandpass box connected to an old school Rockford Fosgate 350 watt amp and man this sub bumps and I'm over powering it since sub is 175 RMS.. For 30 bucks its a deal, if your new to systems I recommend this sub

Product Summary

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Customer Testimonial

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I sent an email about some items I would like to purchase and wanted to know if these items were compatible for my car. I was amazed to get a reply in less than an hour of sending my initial email. Thanks so much for all your help and I will definitely be shopping with you guys.____

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Dual SD12

Subwoofer Size Buying Guide

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